Add Dockerfile and fix deprecated call

Dockerfile

@@ -0,0 +1,10 @@
+FROM python:3
+
+WORKDIR /usr/src/app
+
+COPY requirements.txt ./
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+CMD [ "python", "-u", "./main.py" ]

main.py

@@ -52,7 +52,8 @@ class BringPlugin:
 
 if __name__ == "__main__":
     bring_plugin = BringPlugin()
-    loop = asyncio.get_event_loop()
+    loop = asyncio.new_event_loop()
+    asyncio.set_event_loop(loop)
     
     while True:
         try: